Re: [PATCH 73/76] target/i386: Detect flush-to-zero after rounding

[Richard Henderson]

On 1/24/25 08:28, Peter Maydell wrote:
> The Intel SDM section 10.2.3.3 on the MXCSR.FTZ bit says that we
> flush outputs to zero when we detect underflow, which is after
> rounding.  Set the detect_ftz flag accordingly.
>
> This allows us to enable the test in fma.c which checks this
> behaviour.
>
> Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
> ---
>   target/i386/tcg/fpu_helper.c | 8 ++++----
>   tests/tcg/x86_64/fma.c       | 5 -----
>   2 files changed, 4 insertions(+), 9 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~